Milorganite nitrogen fertilizer has fertilized home lawns, gardens, and golf courses for over 80 years. It will not burn, scorch or stripe your lawn - even in the hottest temperatures and driest conditions - because it contains no chemical salts. Plus you don't need to water it in to activate it. It is rich in iron to give your plants that nice deep green color. The slow-release formula provides nitrogen over an 8-12 week period without causing excessive top growth. This process also helps develop a strong root system. Milorganite stays in the root zone so there's no need to worry about groundwater or well contamination. It is children and pet friendly too. Great for sandy soils. Used for lawns, trees, shrubs, flower and vegetable gardens, seeding, and sodding.